JPH0219860U - - Google Patents

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Publication number
JPH0219860U
JPH0219860U JP9704888U JP9704888U JPH0219860U JP H0219860 U JPH0219860 U JP H0219860U JP 9704888 U JP9704888 U JP 9704888U JP 9704888 U JP9704888 U JP 9704888U JP H0219860 U JPH0219860 U JP H0219860U
Authority
JP
Japan
Prior art keywords
stopper
nozzle
throat
diameter
rocket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9704888U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP9704888U priority Critical patent/JPH0219860U/ja
Publication of JPH0219860U publication Critical patent/JPH0219860U/ja
Pending legal-status Critical Current

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  • Pressure Vessels And Lids Thereof (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案のノズルクロージヤの第１の実
施例を示す図で装着後の断面図、第２図および第
３図は上記ノズルクロージヤの装着時の説明図、
第４図および第５図は上記ノズルクロージヤの吹
き飛ばし時の説明図、第６図は本考案の第２の実
施例を示す図で装着後の断面図、第７図は第６図
の右側面図、第８図は第６図のノズルクロージヤ
の吹き飛ばし時の説明図、第９図は従来のノズル
クロージヤの一例を示す断面図である。 １……ノズル、２，３０……ノズルクロージヤ
、３，３１……栓体、４，３２……栓体保持手段
としてのホルダ、５，３４……ピストン、９……
すり割り溝、１０……ストツパ部、１１……スロ
ート部、３７……ストツパ部としての連結アーム
、４２……圧縮コイルスプリング、Ｐ１……初期
セツト位置。 FIG. 1 is a diagram showing a first embodiment of the nozzle closure of the present invention, and is a sectional view after installation, FIGS. 2 and 3 are explanatory views of the nozzle closure when installed,
Figures 4 and 5 are explanatory views of the nozzle closure when it is blown away, Figure 6 is a cross-sectional view of the second embodiment of the present invention after installation, and Figure 7 is the right side of Figure 6. FIG. 8 is an explanatory view of the nozzle closure shown in FIG. 6 when it is blown away, and FIG. 9 is a sectional view showing an example of a conventional nozzle closure. DESCRIPTION OF SYMBOLS 1... Nozzle, 2, 30... Nozzle closure, 3, 31... Plug body, 4, 32... Holder as a plug holding means, 5, 34... Piston, 9...
slotted groove, 10...stopper part, 11...throat part, 37...connection arm as stopper part, 42...compression coil spring, P1...initial set position.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ロケツトのノズル内にこれを閉塞するべく装着
されるノズルクロージヤにおいて、弾性材料によ
り形成された筒状の栓体と、栓体に内挿されると
ともに拡径収縮可能なストツパ部を有してこのス
トツパ部をノズルのスロート部より上流側で拡径
させて拘束することにより栓体をスロート部に圧
接固定する栓体保持手段と、栓体保持手段に内挿
され、初期セツト位置では前記栓体保持手段に拡
径拘束力を付与する一方、ロケツトモータの燃焼
圧力を受けて初期セツト位置から下流側に移動す
ることで前記拡径拘束力を解除するピストン部材
とから構成されていることを特徴とするロケツト
のノズルクロージヤ。 A nozzle closure installed in a rocket nozzle to close the nozzle has a cylindrical plug made of an elastic material and a stopper part that is inserted into the plug and can expand and contract in diameter. A stopper holding means press-fits the stopper to the throat by expanding the diameter of the stopper on the upstream side of the throat of the nozzle and fixing the stopper to the throat. It is characterized by comprising a piston member that applies a diameter expansion restraint force to the holding means and releases the diameter expansion restraint force by moving downstream from the initial set position in response to the combustion pressure of the rocket motor. Rocket nozzle closure.
JP9704888U 1988-07-22 1988-07-22 Pending JPH0219860U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9704888U JPH0219860U (en) 1988-07-22 1988-07-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9704888U JPH0219860U (en) 1988-07-22 1988-07-22

Publications (1)

Publication Number Publication Date
JPH0219860U true JPH0219860U (en) 1990-02-09

Family

ID=31322250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9704888U Pending JPH0219860U (en) 1988-07-22 1988-07-22

Country Status (1)

Country Link
JP (1) JPH0219860U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040009468A (en) * 2002-07-23 2004-01-31 현대모비스 주식회사 The apparatus for airtight test of fluid fuel rocket engine
KR100462931B1 (en) * 2002-10-17 2004-12-23 한국항공우주연구원 Rocket Engine Throat Plug for Sealing and Safekeeping
KR20170127917A (en) * 2016-05-13 2017-11-22 한화테크윈 주식회사 Apparatus for sealing a flow channel
KR20220098925A (en) * 2021-01-05 2022-07-12 주식회사 한화 Nozzle cover

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040009468A (en) * 2002-07-23 2004-01-31 현대모비스 주식회사 The apparatus for airtight test of fluid fuel rocket engine
KR100462931B1 (en) * 2002-10-17 2004-12-23 한국항공우주연구원 Rocket Engine Throat Plug for Sealing and Safekeeping
KR20170127917A (en) * 2016-05-13 2017-11-22 한화테크윈 주식회사 Apparatus for sealing a flow channel
KR20220098925A (en) * 2021-01-05 2022-07-12 주식회사 한화 Nozzle cover

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